Finding the Fourth Proportional to 120,714.09, 166,606.06 and 69,717.65
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Solution
The fourth proportional to 120,714.09, 166,606.06 and 69,717.65 is: 96,222.26
Step by Step Solution
- Step 1: Write the proportion equation
120,714.09 : 166,606.06 = 69,717.65 : x - Step 2: Convert to fraction form
120,714.09/166,606.06 = 69,717.65/x - Step 3: Cross multiply
120,714.09x = 166,606.06 × 69,717.65 - Step 4: Simplify right side
120,714.09x = 11,615,382,978.96 - Step 5: Solve for x
x = 11,615,382,978.96/120,714.09 - Step 6: Final answer
x = 96,222.26
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.